Nortel Remote Office 9150 Installation And Administration Manual page 234

Configuring the Remote Office 9150 unit
For a list of the default trunk access codes, refer to the "Remote Office 9150
Configuration Information—Dialing Plans on page 354.
ISDN configuration
In order to configure European ISDN, the PSTN must support the following
features:
n
Multiple Subscriber Numbering (MSN)
n
Two directory numbers (one per B channel)
The default configuration setting for BRI SPIDs is NC (Not Configured). Ensure
that no supplemental ISDN services, (for example, Call Waiting) are provided as
this may disrupt the data path and drop calls.
European ISDN
When configuring EuroISDN and ETSI variants, the BRI Configuration SPIDs
must be set to NC (not configured).
To change EuroISDN SPID values, complete the following procedure:
1 Go to Configuration Manager > 9150 > BRI Configuration.
2 Click on the Default button.
3 Configure the DNs, SPIDs, and ISDN line type.
Note: Only A-Law configuration is fully supported with ETSI configurations.
National ISDN
If you select National ISDN as the line type, there are minor protocol differences
between National ISDN -1, -2, -3, and -4. The Proprietary Switch line type is
more general and should be used if problems are encountered.
210
Standard 2.0
Remote Office 9150